Which of These Accurately Characterizes an Apparent Dilemma in Understanding

question 168

Multiple Choice

Which of these accurately characterizes an apparent dilemma in understanding the spiral arm structure of a typical spiral galaxy?

• A) The measured speeds of stars in the galaxy are exactly correct for the present spiral structure, having spun the observed tightness of the spiral in the typical lifetime of a galaxy.
• B) If the measured speeds of stars in the galaxy had spun the arms into shape, these arms would be far less tightly wound than the observed arms.
• C) If the measured speeds of stars in the galaxy had spun the arms into shape, these arms would be far more tightly wound than the observed arms.
• D) The measured speeds of material in the spiral arms should not have led to any spiral but should have generated a straight bar rotating like a solid object.

---

Definitions:

Applied Factory Overhead

Costs indirectly associated with manufacturing, including expenses such as utilities and management salaries, allocated to specific products or departments.

Direct Materials

Raw materials that are directly traceable to the manufacturing of a specific product.

Continuous Process

A production method used to manufacture, produce, or process materials without interruption.

Conversion Cost

The combined costs of direct labor and manufacturing overhead involved in transforming materials into finished goods.